Home / 47,338,421.40-71,007,632.10-20,412,077.40

Finding the Fourth Proportional to 47,338,421.40, 71,007,632.10 and 20,412,077.40

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Solution

The fourth proportional to 47,338,421.40, 71,007,632.10 and 20,412,077.40 is: 30,618,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,338,421.40 : 71,007,632.10 = 20,412,077.40 : x
  2. Step 2: Convert to fraction form
    47,338,421.40/71,007,632.10 = 20,412,077.40/x
  3. Step 3: Cross multiply
    47,338,421.40x = 71,007,632.10 × 20,412,077.40
  4. Step 4: Simplify right side
    47,338,421.40x = 1,449,413,282,415,924.25
  5. Step 5: Solve for x
    x = 1,449,413,282,415,924.25/47,338,421.40
  6. Step 6: Final answer
    x = 30,618,116.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.